ROLE OF HYDROGEN IN THE CAVITATION FRACTURE OF 45 STEEL IN LUBRICATING MEDIA

摘要

For an example of a system formed by carbon steel and mineral oil, it is shown that hydrogen release and, hence, the hydrogenation of the metal surface are possible in the case of cavitation.This leads to the embrittlement of the steel surface and is fractographically revealed by the decrease in the energy required for the cavitation fracture.